Tropman’s research is in ethics and metaethics, with specific attention to moral realism, moral intuitionism, moral objectivity, and the epistemology of moral judgment. Recent publications include "How to be an Aesthetic Realist," "Formulating Moral Objectivity," "Varieties of Moral Intuitionism," and "Evolutionary Debunking Arguments: Moral Realism, Constructivism, and Explaining Moral Knowledge."